CVE-2021-44961
CVE-2021-44961 is a medium-severity vulnerability in Slic3r Libslic3r with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-401.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (55th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-401
- Affected product: Slic3r Libslic3r
- Published:
- Last modified:
Description
A memory leakage flaw exists in the class PerimeterGenerator of Slic3r libslic3r 1.3.0 and Master Commit b1a5500. Specially crafted stl files can exhaust available memory. An attacker can provide malicious files to trigger this vulnerability.
Frequently asked questions
- What is CVE-2021-44961?
- A memory leakage flaw exists in the class PerimeterGenerator of Slic3r libslic3r 1.3.0 and Master Commit b1a5500. Specially crafted stl files can exhaust available memory. An attacker can provide malicious files to trigger this vulnerability.
- How severe is CVE-2021-44961?
- CVE-2021-44961 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2021-44961 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-44961?
- CVE-2021-44961 affects Slic3r Libslic3r. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-44961?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-44961 published?
- CVE-2021-44961 was published on 2022-03-01 and last updated on 2026-07-09.
References
Affected products (1)
- cpe:2.3:a:slic3r:libslic3r:1.3.0:*:*:*:*:*:*:*
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